Nathaniel M. Erdman, OD
- Medicare patients, 2024
- 318
- Part D claims, 2024
- 732
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $28
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Nathaniel Erdman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Nathaniel M. Erdman is an optometrist in Chicago, Illinois
Nathaniel Erdman practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Nathaniel Erdman's NPI, 1982860557, was assigned on August 4, 2008. Nathaniel Erdman graduated from Illinois College of Optometry at Chicago in 2008. Nathaniel Erdman holds Illinois license 046010139.
- NPI
- 1982860557NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204999311
- NPI enumeration date
- August 4, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 864-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nathaniel M. Erdman practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois
Nathaniel Erdman's primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000.
- John H. Stroger, Jr. Hospital of Cook County1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
Source: Dmand AI Affiliation Data
Nathaniel M. Erdman is affiliated with 1 site of care and 1 medical group
Nathaniel Erdman's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government. The medical group on file is John H. Stroger, Jr. Hospital of Cook County.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Nathaniel M. Erdman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nathaniel Erdman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
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Nathaniel M. Erdman is one of 2,194 optometrists in Illinois
Optometrist is Nathaniel Erdman's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Nathaniel Erdman is licensed in Illinois.
Specialties and state licenses
- Optometrist, IllinoisPrimary
Optometrists near Nathaniel Erdman
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Nathaniel M. Erdman treated 318 Medicare patients in 2024, average age 72
CMS counts 318 Medicare patients who saw Nathaniel Erdman in 2024. The largest group is 65 to 74, with 160 patients. 75% of them have high blood pressure, and 58% have diabetes. 67% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nathaniel Erdman's median patient age at 71, with 62% women.
Nathaniel Erdman's Medicare patients by age, 2024
Nathaniel Erdman's Medicare patients by sex, 2024
- Women18859%
- Men13041%
Chronic conditions among Nathaniel Erdman's Medicare patients, 2024
- High blood pressure75%
- Diabetes58%
- High cholesterol52%
- Arthritis32%
- Chronic kidney disease29%
- Heart failure17%
- Ischemic heart disease16%
- Tobacco use15%
Share of Medicare patients with each condition. A patient can have several.
Nathaniel Erdman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nathaniel M. Erdman wrote 732 Medicare Part D claims in 2024
In 2024, Nathaniel Erdman wrote 732 Medicare Part D claims for 186 patients. 73% of them were for generic drugs.
Nathaniel Erdman's Part D claims by kind of drug, 2024
- Generic531 claims73%
- Brand-name201 claims27%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Nathaniel M. Erdman scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Nathaniel Erdman for performance year 2024, reported as part of a group. Nathaniel Erdman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Nathaniel Erdman's MIPS scores, performance year 2024
- 95of 100Final score
- 74.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Nathaniel M. Erdman received $28 in industry payments in 2025
CMS Open Payments shows 1 general payment to Nathaniel Erdman from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $28.
Companies that paid Nathaniel Erdman the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Nathaniel M. Erdman graduated from Illinois College of Optometry at Chicago
Nathaniel Erdman graduated from Illinois College of Optometry at Chicago in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Nathaniel M. Erdman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Nathaniel M. Erdman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nathaniel M. Erdman's NPI number?
Nathaniel M. Erdman's NPI number is 1982860557. It was assigned on August 4, 2008, and it is active in the NPI Registry.
What does Nathaniel M. Erdman specialize in?
Nathaniel M. Erdman is an optometrist in Chicago, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Nathaniel M. Erdman practice?
Nathaniel Erdman practices at 1901 W Harrison St, Chicago, IL 60612. Nathaniel Erdman's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Nathaniel M. Erdman's office phone number?
The practice phone on file for Nathaniel Erdman is (312) 864-6000.
What is Nathaniel M. Erdman's medical license number?
Nathaniel Erdman holds Illinois license 046010139.
Which hospitals is Nathaniel M. Erdman affiliated with?
Nathaniel Erdman practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
What medical group is Nathaniel M. Erdman part of?
Nathaniel Erdman is linked to John H. Stroger, Jr. Hospital of Cook County.
Does Nathaniel M. Erdman accept Medicare?
Yes. CMS lists Nathaniel Erdman as accepting Medicare assignment.
What is Nathaniel M. Erdman's MIPS score?
Nathaniel Erdman's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
How many Medicare patients does Nathaniel M. Erdman see?
CMS counts 318 Medicare patients who saw Nathaniel Erdman in 2024, with an average age of 72.
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Where did Nathaniel M. Erdman go to medical school?
Nathaniel Erdman graduated from Illinois College of Optometry at Chicago in 2008.
Has Nathaniel M. Erdman received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Nathaniel Erdman from 1 company from 2025 to 2025. The largest total came from Amgen Inc.
How long has Nathaniel M. Erdman been practicing?
Nathaniel Erdman graduated from medical school in 2008, 18 years ago.
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